21041458

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{4441}}^1$

素因数の和:4569

約数の個数: 16

約数和(自身を含む): 33261696

約数和(自身を除く): 12220238

約数列:

[1, 2, 23, 46, 103, 206, 2369, 4441, 4738, 8882, 102143, 204286, 457423, 914846, 10520729, 21041458]

約数ペア:

[(1, 21041458), (2, 10520729), (23, 914846), (46, 457423), (103, 204286), (206, 102143), (2369, 8882), (4441, 4738)]